Marketable Securities - Continuous Loss Position (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 26, 2021
Corporate debt securities
Short-term AFS securities
Fair value, less than 12 months, short-term AFS securities	$ 3,799	$ 53,148
Gross unrealized losses, less than 12 months, short-term AFS securities	(11)	(69)
Fair value, 12 months or greater, short-term AFS securities	47,230	0
Gross unrealized losses, 12 months or greater, short-term AFS securities	(1,275)	0
Fair value, short-term AFS securities	51,029	53,148
Gross unrealized losses, short-term AFS securities	(1,286)	(69)
Long-term AFS securities
Fair value, less than 12 months, long-term AFS securities	2,004	224,022
Gross unrealized losses, less than 12 months, long-term AFS securities	(57)	(1,858)
Fair value, 12 months or greater, long-term AFS securities	106,826	0
Gross unrealized losses, 12 months or greater, long-term AFS securities	(6,320)	0
Fair value, long-term AFS securities	108,830	224,022
Gross unrealized losses, long-term AFS securities	(6,377)	(1,858)
U.S Treasury securities
Short-term AFS securities
Fair value, less than 12 months, short-term AFS securities	0	61,018
Gross unrealized losses, less than 12 months, short-term AFS securities	0	(43)
Fair value, 12 months or greater, short-term AFS securities	44,133	0
Gross unrealized losses, 12 months or greater, short-term AFS securities	(963)	0
Fair value, short-term AFS securities	44,133	61,018
Gross unrealized losses, short-term AFS securities	(963)	(43)
Long-term AFS securities
Fair value, less than 12 months, long-term AFS securities	282	119,146
Gross unrealized losses, less than 12 months, long-term AFS securities	(9)	(549)
Fair value, 12 months or greater, long-term AFS securities	24,132	0
Gross unrealized losses, 12 months or greater, long-term AFS securities	(1,567)	0
Fair value, long-term AFS securities	24,414	119,146
Gross unrealized losses, long-term AFS securities	(1,576)	(549)
Municipal securities
Short-term AFS securities
Fair value, less than 12 months, short-term AFS securities	0	1,998
Gross unrealized losses, less than 12 months, short-term AFS securities	0	(2)
Fair value, 12 months or greater, short-term AFS securities	8,726	0
Gross unrealized losses, 12 months or greater, short-term AFS securities	(177)	0
Fair value, short-term AFS securities	8,726	1,998
Gross unrealized losses, short-term AFS securities	(177)	(2)
Long-term AFS securities
Fair value, less than 12 months, long-term AFS securities	0	13,933
Gross unrealized losses, less than 12 months, long-term AFS securities	0	(61)
Fair value, 12 months or greater, long-term AFS securities	0	0
Gross unrealized losses, 12 months or greater, long-term AFS securities	0	0
Fair value, long-term AFS securities	0	13,933
Gross unrealized losses, long-term AFS securities	0	(61)
U.S. governmental agency securities
Short-term AFS securities
Fair value, less than 12 months, short-term AFS securities	0
Gross unrealized losses, less than 12 months, short-term AFS securities	0
Fair value, 12 months or greater, short-term AFS securities	22,084
Gross unrealized losses, 12 months or greater, short-term AFS securities	(722)
Fair value, short-term AFS securities	22,084
Gross unrealized losses, short-term AFS securities	(722)
Long-term AFS securities
Fair value, less than 12 months, long-term AFS securities	0	39,246
Gross unrealized losses, less than 12 months, long-term AFS securities	0	(252)
Fair value, 12 months or greater, long-term AFS securities	5,673	0
Gross unrealized losses, 12 months or greater, long-term AFS securities	(326)	0
Fair value, long-term AFS securities	5,673	39,246
Gross unrealized losses, long-term AFS securities	(326)	(252)
Total short-term AFS securities
Short-term AFS securities
Fair value, less than 12 months, short-term AFS securities	3,799	116,164
Gross unrealized losses, less than 12 months, short-term AFS securities	(11)	(114)
Fair value, 12 months or greater, short-term AFS securities	122,173	0
Gross unrealized losses, 12 months or greater, short-term AFS securities	(3,137)	0
Fair value, short-term AFS securities	125,972	116,164
Gross unrealized losses, short-term AFS securities	(3,148)	(114)
Total long-term AFS securities
Long-term AFS securities
Fair value, less than 12 months, long-term AFS securities	2,286	396,347
Gross unrealized losses, less than 12 months, long-term AFS securities	(66)	(2,720)
Fair value, 12 months or greater, long-term AFS securities	136,631	0
Gross unrealized losses, 12 months or greater, long-term AFS securities	(8,213)	0
Fair value, long-term AFS securities	138,917	396,347
Gross unrealized losses, long-term AFS securities	$ (8,279)	$ (2,720)